Binding mechanism for grain-binders.



J. A. SHARP BINDING, MECHANISM FOR GRAIN BINDERS.

APPLICATION FILED 001.30. 1915.

1,261,860, Patented Apr. 9, 1918.

UNETEE STATES PATENT @FFEQW JAMES A. SHARP, 0F SPRINGFIELD, OHIO,ASSIGNOR T0 INTERNATIONAL HARVESTEB COMPANY OF NEW JERSEY, A CORPGRATIONOF NEW JERSEY.

BINDING MECHANISM FOR GRAIN-BINDERS.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed October 30, 1915. Serial No. 58,782.

To all whom it may concern:

Be it known that 1, JAMES A. SHARP, a citizen of the United States,residing at Springfield, in the county of Clark and State of Ohio, haveinvented certain new and useful Improvements in Binding Mechanisms forGrain-Binders, of which the following is a full, clear, and exactspecification.

My invention relates to binding mechanisms for grain binders.

It has for its object to improve the binding mechanism of a grainbinder, and especially the tripping and compressing device thereof, insuch a manner that an improved bundle is formed and the tension may bevery conveniently adjusted. I attain these objects by an improvedconstruction wherein the clutch dog stop, connected to the compressortrip, is connected to the cam gear through improved resilientconnections comprising a plurality of springs, the tension of which isadjustable by improved means hereinafter more specifically described,

In the accompanyingdrawings I have, for purposes of illustration, shownone embodiment which my invention may assume in practice.

In these drawings:

'Figure 1 is a partial side elevation of a binder mechanism equippedwith my improvement.

Fig. 2 is a anism.

Fig. 3 is a partial sectional View taken on line 3-3 of Fig. 2.

Fig. 1 is a detail view of the threaded member and slidable springabutment interlocked therewith. V

T he binder shown is of standard construction comprising a binder frame1 disposed adjacent the deck 2, the binding mechanism thereof, notshown, being controlled by a rotatable clutch dog 3 which is in turncontrolled by a stop member 4:. This stop is pivoted upon a shaft 5which carries a compressor trip 6, the latter extending upward into thepath of the grain passing over the deck 2 in a well known manner. As inthe usual construction, a crank 7 on the needle shaft is also connectedthrough a trip rod or link 8 with a rotatable cam wheel 9, and a camwheel bell crank 10, pivoted at 11, engages with a cam surface 12 of thecam detail view of the spring mechwheel 9, this bell crank beingconnected to the stop member 4t by means of a rod 13 pivoted to the stopand slidably connected to a spring case 14 pivoted to the bell crank.

T 111 my improved construction, a plurality of springs 15 and 16 arecarried upon the upper or free end of the rod 13, which is inclosedwithin the case, the spring 15 being of heavy material, while the spring16 is relatively lighter. As shown, a slotted abutment 17 is threadedupon the free end of the rod 13 and this abutment, which acts as theupper limit for the spring 15, is slidable in ways 18 formed on thesides of the case at the upper end thereof. An intermediate slottedabutment 19 is also disposed between the two springs 15 and 16 andlikewise slidable with respect to the case, this abutment, however,being limited in its movement by engagement with oppositely extendinglugs 20 formed on opposite sides of the case. Attention is also directedto the fact that a third or bottom slotted abutment 21 is also providedfor the light spring 16, this abutment also being movable along ways 22similar to the ways 18 but located in this instance between the lugs 20and the lower end of the case.

Threaded in the opening in the lower end of the case, through which therod 13 passes (indicated at 23 in Fig. 3), is a threaded tubular member24 which acts as a bushing for the rod 13. This threaded member ispreferably provided with a nut-like end 25 so that it may be readilyturned, and is adjustable longitudinally of the case 1 1. This member isalso provided with a flanged or table-like top 26 having thereon a pairof oppositely disposed upstanding rounded projections or knobs 27thereon which are receivable in the slots formed in the abutment 21 atpoints inside the inner edges of the ways 22. (Fig. 3.)

In the operation or light spring 16 and also as a means of the binderthe lower acts as the trip spring for bringing the binder home, whilethe upper or heavy spring acts as the compression spring. Obviously, anydesired tension adjustment of the spring 16 may be made by rotating thethreaded member 24, the latter in its rotating movement carrying theprojections or knobs 27 around under the abutment 21 and causing thelatter to be raised and the parts being located definitely in positionat each half turn by the seating of these projections or knobs 27 in theslots in the abutment 21. Due to this construction, it will be notedthat the adjustment of the spring tension or the size of the bundle maybe very readily made without in any way disconnecting any of the springmechanism or adjusting any parts which are inaccessible, the only partrequiring adjustment being the threaded member 24 which is readilyaccessible.

While I have in this application specifically described one embodimentwhich my invention may assume in practice, it is. of course, to beunderstood that my invention is not limited to the specific form shownherein, but may be modified to assume other forms without departing fromits spirit, it being my intention to include all such forms of theinvention within the scope of the appended claims. a

What I claim as my invention and desire to secure by Letters Patent is:

1. In combination, a case, a rod slidable therein, a plurality ofsprings carried by said rod and within said case, and an abutmentcarried by said rod between adjacent springs and slidable with respectto said rod and on said case. v

2. In combination, a case, a rod slidable therein, a plurality ofsprings of different tension carried by said rod Within said case, andan abutment carried by said rod between adjacent springs and sildablewith respect to said rod and on said case.

3. In combination, a spring case, a trip rod slidable therein, springsof difierent strength coiled about said rod within said case, and meansslidably receiving said rod and operable from the exterior of said casefor adjusting the spring tension.

4. In combination, a spring case, a trip rod slidable therein, aplurality of springs coiled about said rod, a rotatable member carriedby said case having a bore through which said rod is slidable, meanswhereby the tension of one of said springs may be adjusted bymanipulation of said member, and an abutment located on said rod betweentwo of the springs, and slidable with respect to said rod and on saidcasing.

5. In combination, a spring case, a trip rod slidable therein, springmechanism on said rod and within said case, an adjustable member carriedby said case and adjustable relative thereto through which said rod isreciprocable, and a spring abutment held against rotation by said case,one of said last mentioned elements having a projection'on its facewhile the other has a recess in which said projection is receivable.

6. In combination, a spring case, a trip rod slidable therein, springmechanism surrounding said rod and disposed Within said case, a springabutment on said rod and held against rotation by said case, a memberhav-' ing interlocking means threaded into said case having a borethrough which said rod is slidable, said abutment and said threadedmember releasable when the latter is rotated 7. In combination, a case,a rod slidable therein, an abutment on the upper end of said rod, aslidable abutment intermediate said first named abutment and the lowerend of said case, a spring mounted on said rod on each side of saidslidable abutment, and means for limiting the downward movement of saidslidable abutment.

8. In combination, a case, guideways formed thereon, a rod slidabletherein, an adjustable abutment on the upper end of said rod, a slidableabutment carried on said case and slidable on said guidewaysintermediate the upper end of said rod and the lower end of said case, aspring mounted on said rod on each side of said slidable abutment, andmeans for limiting the downward movement of said slidable abutment.

9. In combination, a case, a rod slidable therein, an abutment on theother end of said rod, a slidable abutment mounted on said rodintermediate the upper end of the same and the lower end of said case, aspring mounted on said rod on each side of said slidable abutment, andmeans for adjusting the tension of said springs. 10. In combination, acase, a rod slidable therein, an abutment on the upper end of said rod,a slidable abutmentintermediate the upper end of said rod and the lowerend of said case, a spring mounted on said rod on each side of saidslidable abutment, means for limiting the downward movement of saidslidable abutment, and means threaded into said case for adjusting thetension of said springs.

In testimony whereof I aflix my signature.

JAMES A. SHARP.

Copies of this patent may be obtained for five cents each. by addressingthe Commissioner of latents, Washington, D. C.

